发明授权
US5008313A Impact modifier for thermoplastic resin having good heat discoloration
resistance and heat deterioration resistance, and thermoplastic resin
composition comprising this impact modifier
失效
具有良好耐热变色性和耐热劣化性的热塑性树脂的抗冲改性剂和包含该抗冲改性剂的热塑性树脂组合物
- 专利标题： Impact modifier for thermoplastic resin having good heat discoloration resistance and heat deterioration resistance, and thermoplastic resin composition comprising this impact modifier
- 专利标题（中）： 具有良好耐热变色性和耐热劣化性的热塑性树脂的抗冲改性剂和包含该抗冲改性剂的热塑性树脂组合物
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申请号： US329256申请日： 1989-03-27
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公开(公告)号： US5008313A公开(公告)日： 1991-04-16
- 发明人: Kazuo Kishida , Kiyokazu Kitai , Masaaki Mohri
- 申请人： Kazuo Kishida , Kiyokazu Kitai , Masaaki Mohri
- 申请人地址： JPX Tokyo
- 专利权人： Mitsubishi Rayon Company, Ltd.
- 当前专利权人： Mitsubishi Rayon Company, Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX63-074171 19880328
- 主分类号： C08L51/04
- IPC分类号： C08L51/04 ; C08J3/22 ; C08K5/00
摘要：
An impact modifier for a thermoplastic resin is disclosed, which comprises (I) 100 parts by weight of a graft copolymer formed by graft-polymerizing (B) a monomer having a vinyl group in the molecule onto (A) a butadiene polymer and, incorporated therein, (II) 0.01 to 5 parts by weight of a thioether type heat stabilizer, (III) 0.01 to 5 parts by weight of a phosphite type heat stabilizer and (IV) 0.01 to 5 parts by weight of a phenol type heat stabilizer having a molecular eight of at least 500. A thermoplastic resin composition having this impact modifier incorporated therein exhibits a good heat discoloration resistance and heat deterioration resistance under high-temperature conditions, as well as an improved impact resistance.